itwbennett writes: "Research in Motion (RIM) reported grim Q4 results Thursday and announced sweeping personnel changes. Leading the parade of departing execs is Jim Balsillie, former co-CEO of the company, who has given up his board seat. David Yach, who has been CTO of software for the company for 13 years, is retiring. And Jim Rowan, chief operating officer of global operations, who has been with the company for four years, is leaving to pursue other interests."Link to Original Source